This is the warmest day yet at St. Andrews as temperatures creep toward 70 degrees. The skies have been mostly sunny, although clouds are due to increase about the time the leaders start the homeward nine at the Old Course.

The wind, which was such a factor during the second and third rounds, will be more moderate on Sunday, although the gusts will still be in the 20-mph range.

Those lucky fans with tee times for Monday, though, had best watch out. There is a 70 percent chance of rain.